Error Code C-F0
Loss of communication between control boards
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-F0
What This Means
Main PCB connector improperly inserted; Sub PCB connector improperly inserted; Damaged connector pins; Defective Main PCB; Faulty communication wire harness
What actually causes this:
Loose connector, faulty wire harness, damaged PCB circuitry, or corrosion on connector pins
First Thing to Check
Verify both Main PCB and Sub PCB connectors are fully seated and undamaged
Parts Involved
How to Fix
- 1
Check whether connector on Main PCB has been inserted correctly
- 2
Check whether connector on Sub PCB has been inserted correctly
- 3
Inspect connectors for bent or damaged pins
- 4
Check wire harness for damage or disconnection
Other Error Codes for NQ70M7770DG
PCB internal temperature sensor malfunction
Control board temperature exceeds safe limit
Water not draining from oven cavity after cycle completion
Shorted keypad keys detected
Temperature probe sensor short circuit detected
Magnetron or convection cooling fan not operating correctly
Temperature sensor open circuit or short detected during operation
Door lock mechanism positioned incorrectly or not functioning